<?php

/**
 * XMLToArray Generator Class
 * @author  :  MA Razzaque Rupom <rupom_315@yahoo.com>, <rupom.bd@gmail.com>
 *             Moderator, phpResource (LINK1http://groups.yahoo.com/group/phpresource/LINK1)
 *             URL: LINK2http://www.rupom.infoLINK2
 * @version :  1.0
 * @date       06/05/2006
 * Purpose  : Creating Hierarchical Array from XML Data
 * Released : Under GPL
 */
class XmlToArray {

    var $xml = '';

    /**
     * Default Constructor
     * @param $xml = xml data
     * @return none
     */
    function XmlToArray($xml) {
        $this->xml = $xml;
    }

    /**
     * _struct_to_array($values, &$i)
     *
     * This is adds the contents of the return xml into the array for easier processing.
     * Recursive, Static
     *
     * @access    private
     * @param    array  $values this is the xml data in an array
     * @param    int    $i  this is the current location in the array
     * @return    Array
     */
    function _struct_to_array($values, &$i) {
        $child = array();
        if (isset($values[$i]['value']))
            array_push($child, $values[$i]['value']);

        while ($i++ < count($values)) {
            switch ($values[$i]['type']) {
                case 'cdata':
                    array_push($child, $values[$i]['value']);
                    break;

                case 'complete':
                    $name = $values[$i]['tag'];
                    if (!empty($name)) {
                        if (isset($values[$i]['value']))
                            $child[$name] = ($values[$i]['value']) ? ($values[$i]['value']) : '';
                        if (isset($values[$i]['attributes'])) {
                            $child[$name] = $values[$i]['attributes'];
                        }
                    }
                    break;

                case 'open':
                    $name = $values[$i]['tag'];
                    $size = isset($child[$name]) ? sizeof($child[$name]) : 0;
                    $child[$name][$size] = $this->_struct_to_array($values, $i);
                    break;

                case 'close':
                    return $child;
                    break;
            }
        }
        return $child;
    }

    /**
     * createArray($data)
     *
     * This is adds the contents of the return xml into the array for easier processing.
     *
     * @access    public
     * @param    string    $data this is the string of the xml data
     * @return    Array
     */
    function createArray() {
        $xml = $this->xml;
        $values = array();
        $index = array();
        $array = array();
        $parser = xml_parser_create();
        xml_parser_set_option($parser, XML_OPTION_SKIP_WHITE, 1);
        xml_parser_set_option($parser, XML_OPTION_CASE_FOLDING, 0);
        xml_parse_into_struct($parser, $xml, $values, $index);
        xml_parser_free($parser);
        $i = 0;
        $name = $values[$i]['tag'];
        $array[$name] = isset($values[$i]['attributes']) ? $values[$i]['attributes'] : '';
        $array[$name] = $this->_struct_to_array($values, $i);
        return $array;
    }
}